CN117491774A - An on-site verification system and method for AC sampling measurement and control devices based on Bluetooth communication - Google Patents

An on-site verification system and method for AC sampling measurement and control devices based on Bluetooth communication Download PDF

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Publication number
CN117491774A
CN117491774A CN202311438572.3A CN202311438572A CN117491774A CN 117491774 A CN117491774 A CN 117491774A CN 202311438572 A CN202311438572 A CN 202311438572A CN 117491774 A CN117491774 A CN 117491774A
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Prior art keywords
bluetooth
sampling
control device
measurement
sampling measurement
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CN202311438572.3A
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Inventor
周亚群
王誉晓
谢玮
李静
刘欢
李�杰
贺涛
杨柏依
赵亮
董鹏
李雪莉
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Xian Thermal Power Research Institute Co Ltd
Huaneng Laiwu Power Generation Co Ltd
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Xian Thermal Power Research Institute Co Ltd
Huaneng Laiwu Power Generation Co Ltd
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Priority to CN202311438572.3A priority Critical patent/CN117491774A/en
Publication of CN117491774A publication Critical patent/CN117491774A/en
Priority to PCT/CN2024/093266 priority patent/WO2025091845A1/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radio Relay Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The invention discloses a field verification system and method based on a Bluetooth communication alternating current sampling measurement and control device, comprising an alternating current sampling measurement and control device standard device, a verified alternating current sampling measurement device, a Bluetooth data acquisition module and an upper computer; the standard device of the alternating current sampling measurement and control device comprises a Bluetooth sending module; the system and the method can improve the verification efficiency and the safety of the sampling measurement and control device.

Description

Bluetooth communication based on-site verification system and method for alternating current sampling measurement and control device
Technical Field
The invention belongs to the technical field of electrical measurement, and relates to a field verification system and method based on a Bluetooth communication alternating current sampling measurement and control device.
Background
The alternating current sampling measurement and control device is an important component part of a comprehensive automatic system for a transformer substation and a power plant, and comprises telecontrol communication, instruments, relay protection and the like. With the perfection and maturity of the alternating current digital technology, the alternating current sampling measurement and control device is widely applied to replace the traditional electric quantity transducer and electric measuring instrument in the new construction, extension and transformation processes of power generation and power supply enterprises. However, the on-site verification of the alternating current sampling measurement and control device is disordered due to the influence of factors such as lack of unified verification standards, large running verification risks and the like. The accuracy and other technical indexes of the alternating current sampling measurement and control device directly determine whether the electric power automation can normally run, so that the calibration of the alternating current sampling measurement and control device is very necessary.
The traditional on-site calibration method of the alternating current sampling measurement and control device adopts a standard source method to calculate errors of the alternating current sampling measurement and control device, wiring such as voltage, current and the like, a corresponding device cabinet is needed to be found and the original wiring is removed during on-site calibration, and then the voltage and the current of the standard device are connected into a secondary loop. Because the alternating current sampling measurement and control device has more channels, the alternating current sampling measurement and control device not only comprises voltage and current, but also comprises parameters such as frequency, active power, reactive power, power factor, phase angle and the like, if each channel is respectively disconnected and wired according to the traditional verification method, the working load is large, the operation is complex, the manpower consumption is high, the working efficiency is low, and meanwhile, certain hidden danger is brought to the safe operation of a power plant to a great extent. Therefore, the system and the method for on-site verification of the alternating current sampling measurement and control device based on Bluetooth communication can solve the problem of complex on-site verification wiring by utilizing a Bluetooth data transmission mode, simultaneously avoid potential safety hazards such as incorrect wiring disconnection and forgetting to reinstall after wiring disconnection of a connector, and have important significance for improving the verification efficiency and the safety of the sampling measurement and control device.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a system and a method for on-site verification of an alternating current sampling measurement and control device based on Bluetooth communication, which can improve the verification efficiency and the safety of the sampling measurement and control device.
In order to achieve the purpose, the invention discloses a field verification system based on a Bluetooth communication alternating current sampling measurement and control device, which comprises an alternating current sampling measurement and control device standard device, a verified alternating current sampling measurement device, a Bluetooth data acquisition module and an upper computer;
the standard device of the alternating current sampling measurement and control device comprises a Bluetooth sending module; the standard device of the alternating current sampling measurement and control device and the checked alternating current sampling measurement device all comprise Bluetooth receiving modules, the Bluetooth transmitting module is connected with the Bluetooth receiving module in the standard device of the alternating current sampling measurement and control device and the Bluetooth receiving module in the checked alternating current sampling measurement device, the Bluetooth receiving module in the standard device of the alternating current sampling measurement and control device and the Bluetooth receiving module in the checked alternating current sampling measurement device are connected with the Bluetooth data acquisition module, and the Bluetooth data acquisition module is connected with the upper computer.
The Bluetooth data acquisition module is connected with the upper computer through a ZigBee network.
The Bluetooth sending module is connected with external equipment.
The Bluetooth data acquisition module consists of a site collector and a site transponder.
The field verification method based on the Bluetooth communication alternating current sampling measurement and control device comprises the following steps:
1) A Bluetooth transmitting module in a standard device of the alternating current sampling measurement and control device transmits voltage, current, power, frequency and power factor in real time;
2) The system comprises an alternating current sampling measurement and control device standard device and a Bluetooth receiving module in a verified alternating current sampling measurement device, wherein the Bluetooth receiving module receives voltage, current, power, frequency and power factor sent by a Bluetooth sending module in the alternating current sampling measurement and control device standard device in real time;
3) The Bluetooth data acquisition module acquires voltage, current, power, frequency and power factor information received by the Bluetooth receiving module in the standard device of the alternating current sampling measurement and control device and the checked alternating current sampling measurement device in real time, and sends the voltage, current, power, frequency and power factor information to the upper computer.
The step 3) further comprises the following steps:
and the upper computer calculates the basic error of the checked alternating current sampling measuring device according to the received data.
The step 3) further comprises the following steps:
judging whether the basic error of the checked alternating current sampling measuring device is qualified or not, and outputting an alarm signal when the basic error of the checked alternating current sampling measuring device is unqualified.
The method also comprises the following steps before the step 1):
and pairing the Bluetooth sending module and the Bluetooth receiving module.
The invention has the following beneficial effects:
when the system and the method for checking the AC sampling measurement and control device on site based on the Bluetooth communication are specifically operated, the Bluetooth communication wireless transmission mode is utilized to check the AC sampling measurement and control device, accidents such as current open circuit or voltage short circuit caused by wiring and disconnection on a current and voltage secondary loop are avoided, labor time is saved, and safety of on-site checking is greatly improved. The invention uses Bluetooth wireless transmission mode to obtain the same data at the same time, reduces the time difference between the data reading in the memory element of the AC sampling measurement and control device and the data reading in the memory element of the standard device, and greatly improves the accuracy of error checking of the AC sampling measurement and control device. Because the communication protocols of the alternating current sampling measurement and control device are more in variety, even if the protocols are the same, the protocols are different due to different manufacturers and equipment models, so that great difficulty is brought to the checking work of the alternating current sampling measurement and control device.
Drawings
FIG. 1 is a system diagram of the present invention;
fig. 2 is a flow chart of the present invention.
The system comprises an alternating current sampling measurement and control device standard device 1, an alternating current sampling measurement device 2, a Bluetooth sending module 3, a Bluetooth receiving module 4, a Bluetooth data acquisition module 5 and an upper computer 6.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, but not intended to limit the scope of the present disclosure. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
In the accompanying drawings, there is shown a schematic structural diagram in accordance with a disclosed embodiment of the invention. The figures are not drawn to scale, wherein certain details are exaggerated for clarity of presentation and may have been omitted. The shapes of the various regions, layers and their relative sizes, positional relationships shown in the drawings are merely exemplary, may in practice deviate due to manufacturing tolerances or technical limitations, and one skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions as actually required.
Referring to fig. 1, the field verification system based on the bluetooth communication ac sampling measurement and control device of the present invention includes an ac sampling measurement and control device standard device 1, a verified ac sampling measurement device 2, a bluetooth data acquisition module 5 and an upper computer 6;
the standard device 1 of the alternating current sampling measurement and control device comprises a Bluetooth sending module 3; the alternating current sampling measurement and control device standard device 1 and the verified alternating current sampling measurement device 2 comprise Bluetooth receiving modules 4, a Bluetooth sending module 3 is connected with the Bluetooth receiving modules 4 in the alternating current sampling measurement and control device standard device 1 and the verified Bluetooth receiving modules 4 in the alternating current sampling measurement device 2, the Bluetooth receiving modules 4 in the alternating current sampling measurement and control device standard device 1 and the verified Bluetooth receiving modules 4 in the alternating current sampling measurement device 2 are connected with a Bluetooth data acquisition module 5, and the Bluetooth data acquisition module 5 is connected with an upper computer 6.
Referring to fig. 2, the field calibration method based on the bluetooth communication ac sampling measurement and control device of the present invention comprises the following steps:
11 The Bluetooth transmitting module 3 in the standard device 1 of the alternating current sampling measurement and control device transmits voltage, current, power, frequency and power factor in real time;
12 A Bluetooth receiving module 4 in the standard device 1 of the alternating current sampling measurement and control device and the checked alternating current sampling measurement device 2 receives the voltage, current, power, frequency and power factor sent by a Bluetooth sending module 3 in the standard device 1 of the alternating current sampling measurement and control device in real time;
13 The Bluetooth data acquisition module 5 acquires the voltage, current, power, frequency and power factor information received by the Bluetooth receiving module 4 in the standard device 1 of the alternating current sampling measurement and control device and the verified alternating current sampling measurement device 2 in real time, and sends the information to the upper computer 6.
The Bluetooth sending module 3 is connected with external equipment; the working process is as follows:
21 A) turning on the Bluetooth transmission module 3;
22 A Bluetooth sending module 3 in the standard device 1 of the alternating current sampling measurement and control device sends out a pre-signal to inquire whether a Bluetooth receiving module 4 in the checked alternating current sampling measurement device 2 receives a Bluetooth pairing request;
23 When the Bluetooth receiving module 4 in the checked AC sampling measurement device 2 receives the pairing Bluetooth request sent by the Bluetooth sending module 3 in the AC sampling measurement and control device standard device 1, the Bluetooth sending module 3 on the AC sampling measurement and control device standard device 1 sends voltage, current, power, frequency and power factor based on the Bluetooth protocol;
the Bluetooth receiving module 4 establishes connection with external equipment, and the working process is as follows:
31 Opening the Bluetooth transmitting module 3 and the Bluetooth receiving module 4;
32 A bluetooth connection is confirmed, and whether a bluetooth receiving module 4 in the standard device 1 of the alternating current sampling measurement and control device and the checked alternating current sampling measurement device 2 receives a bluetooth pairing request is inquired;
33 Based on the Bluetooth communication protocol, receiving the receiving instruction sent by the Bluetooth sending module 3 in the standard device 1 of the AC sampling measurement and control device according to the requirement, and confirming that the Bluetooth receiving module 4 in the standard device 1 of the AC sampling measurement and control device and the checked AC sampling measurement device 2 can receive voltage, current, power, frequency and power factor;
the Bluetooth data acquisition module 5 is connected with external equipment, and the working process is as follows:
41 The Bluetooth data acquisition module 5 consists of a field collector and a field repeater, and the Bluetooth data acquisition module 5 respectively acquires the voltage, current, power, frequency and power factor information received by the Bluetooth receiving module 4 in the standard device 1 of the alternating current sampling measurement and control device and the verified alternating current sampling measurement device 2;
42 The acquired data are transmitted to the upper computer 6 through the ZigBee network, and the upper computer 6 collects and stores the data collected by the Bluetooth data acquisition module 5;
43 The ZigBee wireless serial port module can be connected with a plurality of serial ports simultaneously, the connection is carried out in a wireless mode, when data transmission is carried out, data are firstly sent to one module from the serial ports, then the data are sent out from the serial ports, the other module receives the data, and when the other module receives the data, the data are sent out through the serial ports.
The error calculation and analysis process comprises the following steps:
51 The basic error of each parameter of the checked AC sampling measuring device 2 adopts a standard meter separation verification method, namely, the parameter data read by the standard device and the checked device after the parameter output of the standard device is respectively recorded. After the Bluetooth transmitting module 3 outputs signals such as voltage and current, signal data such as voltage and current of the standard device 1 of the alternating current sampling measurement and control device and the verified alternating current sampling measurement device 2 received by the Bluetooth receiving module 4 are recorded respectively;
52 The basic errors of all parameters of the checked alternating current sampling measuring device 2 are expressed in a reference error form, the basic errors of all check points of all parameters meet the requirements, and the errors of the checked alternating current sampling measuring device 2 are qualified.
The basic error calculation model is:
wherein, gamma is the basic error of the checked AC sampling measuring device 2, W 1 For the data of the checked AC sampling measuring device 2 collected by the Bluetooth data collecting module 5, W 2 The data of the standard device 1 of the alternating current sampling measurement and control device, which is acquired by the Bluetooth data acquisition module 5; w (W) N Data transmitted for the bluetooth transmission module 3;
53 If the basic error of each check point of a certain parameter does not meet the requirement, the error of the checked alternating current sampling measurement device 2 is unqualified, and an alarm signal is sent;
in addition, the upper computer 6 software records each parameter of the standard device 1 of the alternating current sampling measurement and control device and the verified alternating current sampling measurement device 2, processes the data and provides a verification report.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.

Claims (8)

1.一种基于蓝牙通讯交流采样测控装置现场校验系统，其特征在于，包括交流采样测控装置标准装置(1)、被校验的交流采样测量装置(2)、蓝牙数据采集模块(5)及上位机(6)；1. An on-site verification system for AC sampling and measurement and control devices based on Bluetooth communication, which is characterized in that it includes an AC sampling and measurement and control device standard device (1), a verified AC sampling and measurement device (2), and a Bluetooth data collection module (5) and host computer (6); 交流采样测控装置标准装置(1)包括蓝牙发送模块(3)；交流采样测控装置标准装置(1)及被校验的交流采样测量装置(2)均包括蓝牙接收模块(4)，蓝牙发送模块(3)与交流采样测控装置标准装置(1)中的蓝牙接收模块(4)及被校验的交流采样测量装置(2)中的蓝牙接收模块(4)相连接，交流采样测控装置标准装置(1)中的蓝牙接收模块(4)及被校验的交流采样测量装置(2)中的蓝牙接收模块(4)与蓝牙数据采集模块(5)相连接，蓝牙数据采集模块(5)与上位机(6)相连接。The AC sampling measurement and control device standard device (1) includes a Bluetooth sending module (3); the AC sampling measurement and control device standard device (1) and the verified AC sampling and measuring device (2) both include a Bluetooth receiving module (4) and a Bluetooth sending module (3) Connected to the Bluetooth receiving module (4) in the AC sampling and measuring device standard device (1) and the Bluetooth receiving module (4) in the calibrated AC sampling and measuring device (2). The AC sampling and measuring and controlling device standard device The Bluetooth receiving module (4) in (1) and the Bluetooth receiving module (4) in the verified AC sampling and measuring device (2) are connected to the Bluetooth data acquisition module (5), and the Bluetooth data acquisition module (5) is connected to The host computer (6) is connected. 2.根据权利要求1所述的基于蓝牙通讯交流采样测控装置现场校验方法，其特征在于，蓝牙数据采集模块(5)通过ZigBee网络与上位机(6)相连接。2. On-site verification method of communication sampling measurement and control device based on Bluetooth communication according to claim 1, characterized in that the Bluetooth data collection module (5) is connected to the host computer (6) through the ZigBee network. 3.根据权利要求1所述的基于蓝牙通讯交流采样测控装置现场校验方法，其特征在于，蓝牙发送模块(3)连接有外部设备。3. The on-site verification method of communication sampling measurement and control device based on Bluetooth communication according to claim 1, characterized in that the Bluetooth sending module (3) is connected to an external device. 4.根据权利要求1所述的基于蓝牙通讯交流采样测控装置现场校验方法，其特征在于，蓝牙数据采集模块(5)由现场采集器及现场转发器组成。4. The on-site verification method of AC sampling measurement and control device based on Bluetooth communication according to claim 1, characterized in that the Bluetooth data collection module (5) is composed of an on-site collector and an on-site transponder. 5.一种基于蓝牙通讯交流采样测控装置现场校验方法，其特征在于，基于权利要求1所述的基于蓝牙通讯交流采样测控装置现场校验系统，包括以下步骤：5. A method for on-site verification of AC sampling and control devices based on Bluetooth communication, characterized in that, based on the on-site verification system of AC sampling and control devices based on Bluetooth communication according to claim 1, it includes the following steps: 1)交流采样测控装置标准装置(1)中的蓝牙发送模块(3)实时发送电压、电流、功率、频率及功率因数；1) The Bluetooth sending module (3) in the AC sampling measurement and control device standard device (1) sends voltage, current, power, frequency and power factor in real time; 2)交流采样测控装置标准装置(1)及被校验的交流采样测量装置(2)中的蓝牙接收模块(4)，实时接收交流采样测控装置标准装置(1)中蓝牙发送模块(3)发送的电压、电流、功率、频率及功率因数；2) The Bluetooth receiving module (4) in the AC sampling measurement and control device standard device (1) and the calibrated AC sampling and measurement device (2), and the Bluetooth sending module (3) in the AC sampling and measurement and control device standard device (1) in real time. Transmitted voltage, current, power, frequency and power factor; 3)蓝牙数据采集模块(5)实时采集交流采样测控装置标准装置(1)以及被校验的交流采样测量装置(2)中蓝牙接收模块(4)接收的电压、电流、功率、频率及功率因数信息，并发送至上位机(6)。3) The Bluetooth data collection module (5) collects the voltage, current, power, frequency and power received by the Bluetooth receiving module (4) in the AC sampling measurement and control device standard device (1) and the calibrated AC sampling measurement device (2) in real time Factor information is sent to the host computer (6). 6.根据权利要求5所述的基于蓝牙通讯交流采样测控装置现场校验方法，其特征在于，步骤3)之后还包括：6. The on-site verification method of AC sampling measurement and control device based on Bluetooth communication according to claim 5, characterized in that, after step 3), it also includes: 上位机(6)根据接收到的数据计算被校验的交流采样测量装置(2)的基本误差。The host computer (6) calculates the basic error of the verified AC sampling measurement device (2) based on the received data. 7.根据权利要求6所述的基于蓝牙通讯交流采样测控装置现场校验方法，其特征在于，步骤3)之后还包括：7. The on-site verification method of communication sampling measurement and control device based on Bluetooth communication according to claim 6, characterized in that, after step 3), it also includes: 判断被校验的交流采样测量装置(2)的基本误差是否合格，当被校验的交流采样测量装置(2)的基本误差不合格时，则输出报警信号。It is judged whether the basic error of the calibrated AC sampling and measuring device (2) is qualified. When the basic error of the calibrated AC sampling and measuring device (2) is unqualified, an alarm signal is output. 8.根据权利要求5所述的基于蓝牙通讯交流采样测控装置现场校验方法，其特征在于，步骤1)之前还包括：8. The on-site verification method of AC sampling measurement and control device based on Bluetooth communication according to claim 5, characterized in that, before step 1), it also includes: 对所述蓝牙发送模块(3)与蓝牙接收模块(4)进行配对。Pair the Bluetooth sending module (3) and the Bluetooth receiving module (4).
CN202311438572.3A 2023-10-31 2023-10-31 An on-site verification system and method for AC sampling measurement and control devices based on Bluetooth communication Pending CN117491774A (en)

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WO2025091845A1 (en) * 2023-10-31 2025-05-08 西安热工研究院有限公司 Bluetooth communication based field calibration system and method for alternating-current sampling measurement and control apparatus

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